Tegan and Sara - I'm Not Your Hero (Sara forgets the words) - The O2, London - 17th Nov '12 

so cute when they look at eachother when they both mess up the words. it wouldn't be a tns performance without them messing up. i love it :D

wow she's so adorable i'm actually really proud of sara omg lately she's been sounding absolutely flawless live

Sara's reaction is the cutest thing ever

Awww Sara you're so cute oh my gosh! 😍

Love sara!

It's so cute how she just stops and waits for the chorus :3

OMG ♥

her reaction= so frakin adorable

poor girl forgets the lyrics and her guitar stops working all on the same night in such a legendary venue. she was probably so bummed :(

eugh, they're adorable.

2:40 BAM haha

I bet thatIf this wasn't a support act Sara would have just stopped everyone and mess up the whole song :D now she just modeld through it.

i know it's normal for them but musicians are extremely hard on them selves.

I would have thought she didn't feel great about messing up as a support act... especially their first song...

if they dont mess up atleast one song in their set, then theres something wrong! haha

lol